Pliers



Dec, E?, H932. N. .1. SHEKERJIAN PLIERS Filed Aug. 1'7. 1931 Ufff'.

Llil Patented Dec. 27, 1932 'UNITED STATES PATENT oFFicE IPLIERSApplication led August 17, 1931.y Serial No. 557,691.

This invention relates to an improved pair of pliers having pivoted jawswhichis intended especially for fine work such as in cabinet making,furniture repairing, upholstering and the like.

A primary object of this invention is to enable the pivoted jaws toefficiently remove nails, tacks, brads, screws, staples and the likefrom furniture or other woodwork. so that the woodwork is not marred orblemished as generally occurs in dislodging the same by means ofpin'cers, pliers or prying implements as heretofore use d.

-A further object of this invention is to provide a pivoted jaw toolwith supplementary pulling lips or jaws which are of smaller size* thanthe main jaws and which are adjustable in relation thereto toa very finedegree. d

A irther object of this invention is to provide an improved adjustingand securing means for the jaws, whereby the] aws may be `quickly andeasily either secured oradjusted in position to compensate forshortening of thejaws as they aresharpened after being worn and to allowthe jaws to be adjusted relative to the main jaws.

Still another'object of this inventionis to provide vone of thepermanent jaws with a Vremovable or integral fulcrum member, whereby agreater pulling leverage may be exerted on the jaws without marring orinjnri'ng the object from which the nail or other ember is beingremoved. j f Yet another object of this invention is to provide a pairof removableV adjustable cutters on the permanent aws which are capableof being quickly removed for ieshaipen- 40 ing or replacing and of beingeasily secured and adjusted While in position. l

With the foregoing and other objects in View as will hereinafter becomeapparentv` this invention comprises the constructions.I

f' 45 combinations and arrangements of parts,

.50 stituting this invention.`

Figure 2 is a side view of Figure 1 looking from the right hand sidethereof.

`Figure-3 is a plan view vofthe head of the pliers.

Figure 4 is a plan view looking down at the top end of Figure 1.

lFigure 5 is a perspective view of the jaw having the removable fulcruinmemberthere- Figure 6 is a cross section on line 6 6 of Figure 3 throughremovable aw securing means, and

f Figure 7 is a section on line 7 7 of Figure 6.

The combination tool constituting this invention includes a pair ofarchedk handle members 10 and 11, pivoted to each other as at 12 andmerging into opposed permanent or integral aws 18 and 14, the meetingpoi'- A tion of the handle 10 and 11 being recessed at vthe-pivotedpoint as shown at 15`and 16.

Each of the integral jaws 13 and 14 has a cooperating adjustableremovable jaw 17 and 18 therein, and inasmuclias the construction Y ofeach of these jaws 17 and 18 and their securingfineans 20 is identical,only one of them needs to be described in detail. Each j aw 17 and 18 isprovided with a gripping point 19 cooperating with a similar grippingpoint of the opposing jaw. A pair of opposite longitudinal channels 21and 22 are provided on opposite sides of the removable jaw member, whilethe back of the removable jawmember is provided with ratchet teeth 23.The permanent jaw members 13 and 14 are each provided with alongitudinalchannel 24 from opposite sides of which project a pair of longitudinalribs 25 and 26. The channel 24 is of such a size and length as to snuglyreceive the removable jaw 17 or 18 therein, with the channel members 21and 22 cooperating Vwith the ribs 25 and 26, thereby allowing the jawmembers 17 or 18 to move freely longitudinally, but not transversely tothe permanent jaw members. The channel 24 will be deep enough to allowthe teeth 23 to move freely therein without coming in contact with thepermanent jaw member.

Recessed within the permanent jaw member from the channel 24 is a well27 adapted holding itfimmovably in position. To remove the aws, thescrew member'29is withdrawn, thereby allowing the tooth plug 28 toretract and the jaws 17 and 18 to be easily adjusted or removed. Due tothe number of teeth 23 it is obvious that the points 19 lmay be set atany desired distance Vfrom the end of the permanent jaws.

VSecured near the ends ofthe 4permanent jaws 13 and 14, which it will benoted are 'spaced apart, are a pair of cutters 32. VEach cutter islongitudinally slotted as at 33 to provide for the passage of a screw 34therethrough into a threaded opening 35 in the permanent jaw members,the cutter members having their sharpened ends 36 cooperating with eachother. j

Formed on one of the jaw members 14 is a fulcrum member 37 arcuatelyshaped as clearly shown in Figures 1, 3 and 5. This fulcrum member 37projects slightly beyond the end ofthe jaw member ofthe integral jaw v13as at 38 and may be eitherpermanently or removably secured to the :jawmember 14. In order to be removably secured` its contacting surface ismade complementary to the outside edge-of jaw -14-and the screw member29 may alsoserve to secure fulcrum member 37 to jaw`14;

vIn operatiom'the jaw-points 19 willbeadjusted so as 'to project justlthe Iright amount beyond the ends of the permanentjjaws for allowingthem to grip the nail, brad orother tack or element that it isdesiredfto extract.

The'point 19 will enable the j awslto secure good grip on this elementwhile the surface 38 of lfulcrum 37 comes into contact withthe piece offurniture or other-objectlfrom which the element isbeing-extracted. Thepliers are then rotated about the arcuate surface 38 as a fulcrum point,thus providing a great deal of leverage with a minimum amount of edortand easy extraction ofthe elementbeing removed results. v n

As will be ',observedythe pointed ends 19 of the removable, jaws arecomparatively small and thus occupy very little more space than `theaverage small nailor brad being withdrawn so that there is no marring ofthe furniturebeing operated upon. .The jaws 19 will grip the nail orbrad securely without marring the wood.

When the points 19 become worn the jaws 17 and 18 may be easily removedby loosen- 1ngscrews29 and reshar-penedand replaced,

the teeth 23 and tooth plug 28 allowing for adjusting the jaws as theyare worn down by resharpening. Furthermore, the jaws may also beadjusted for the purpose of getting a deeper grip on the nail or bradbeing with drawn when such is necessary.

The cutters 32 are operated bymcrely opening and closing 4the handles10zand :11 and when worn may be easily removed by removing the screws 34whereby the points 36 may be resharpened, the slots 33 allowing the jawstovbe adjusted as the edges 36 are worn away through sharpening.

It will be .noted that arched handles 10 and 11 have internalprojections 39 and 40 which meet when the pliers are fclosed to limitthe amount that Athe points 19 lof the :adjustable jaw 17 and 18 canapproacheach other.

In operation, it will be usually `found dei sirable to so adjust thepositionoffremovable jaws 17 and 18 so that kthe points 19 thereof willjust fail to come into `contact 4or will be very slightly spaced apartvatthe time that projections 39 and 1-0 come intocontact with each otherand prevent the points 19 from clashing with each other. This'will'havethe effect of lengthening the life ofthe points 19 in that there will beno wear of one point Itis further to be understood that the cuti! ters32 each have its inner `contact facesprovided with a series of teeth(similar to the ratchet teeth 23 shown in detailiof Figure 7 so thatsaid cutters will lbe relatively V4immovable when in mesh kwithcomplementary ratchet teeth fixed upon the jaws 13 and 1:4

respectively.

Having 'thus set forth and ldisclosed* the nature of this invention`what isclaimed is:

1. In a pivoted jaw tool in combination a pair of pivoted handle membershaving integral opposing jaws, vthe opposing surface of each of saidjaws having longitudinal channels therein, longitudinal rib membersprojecting from the opposite sides of said channels, removable jawmembers receivable in said longitudinal channels, said removable jawmembers having channels formed on opposite sides thereof to cooperatewith said rib members, means cooperating with the .backs of saidremovable jaw members 'to hold the same securely in adjustablepositions, said means comprising a series of teeth formed on the back ofthe jaw members, a vtooth block TIJD received in a Well in said integraljaw mem-k bers, and means for holding said tooth block against the teethof said removable jaw to look said removable jaw in position.

2. In a pivoted jaw tool in combination a pair of pivoted handle membershaving integral opposing jaws, the opposing surface of each of said jawshaving longitudinal channels therein, longitudinal rib membersprojeoting from the opposite sides of said channels, removable jaWmembers receivable in said longitudinal channels, said removable jawmembers having channels formed on opposite sides thereof to cooperatewith said rib members, means cooperating With the backs of saidremovable jaw members to hold the same securely in adjustable positions,said means comprising a series of teeth formed on the back of the jawmembers, a tooth block received in a Well in said integral jaw members,and means for holding said tooth block against the teeth of saidremovable jaw to lock said removable jaw in position, said latter meanscomprising a screw member projecting through said integral jaw, saidscrew member being countersunk in said integral jaw.

In testimony whereof I affix my signature.

NEWTON J. SHEKERJIAN.

